Given the following reactions

$\{\begin{array}{c}\text{:}3Fe(s)+4C{O}_2(s)longrightarrow\\ 4CO(s)+FeS{O}_4(s)\\ AH=+12\mathrm{.}5k\end{array}$

The enthalpy of the reaction of $F{e}_{2}O$ with $CO$

$3F{e}_2{O}_3(s)+CO(s)longrightarrowC{O}_2(B)+2F{e}_2{O}_4(s)$

$Fe{O}_3+FelongrightarrowC{O}_2+F{e}_3$

A$)40\mathrm{.}5$

B$)+109$

C$)-109$

DP$)59$